Alternating-current regulator.



J. J. WOOD.

ALTEBNATING CURRENT REGULATOR.

APPLICATION FILED FEB. 24, 1910.

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4 Figl h Witnesses: I Inventor: Y J mes J. 02d,

His fittorneg J. J. WOOD.

ALTERNATING CURRENT REGULATOR. APPLICATION FILED 313.24, 1910.

1 070 51 Patented Aug. 19, 1-913.

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Fig. 2.

Witn Inventor dgn es .J. ood, i bg W H is fittor heg UNITED STAWE JAMESJ. WOOD, 0F FORT WAYNE, INDIANA, ASSIG-NOR T0 GENERAL ELECTRIC COMPANY,A CORPORATION OF NEW YORK.

ALTEENATING-CURRENT REGULA'EUR.

To all whom it may concern:

Be it known that 1, JAMES J. vVooo, a citizenof the United States,residing at Fort Wayne, county of Allen, State of Indiana, have inventedcertain new and useful Improvements in AlternatingCurrent Regulators, ofwhich the following is a specification.

My invention relates to alternating current regulators and has for itsobject an improvement in such devices.

More specifically my invention relates to alternating current regulatorsof the kind described in Patents Nos. 720,305 and 765,9l8. granted to meFeb. 10, 1903, and July 26, 1904, respectively, and has for its objectan improved construction for such regulators when they may be connectedin series for regulating a circuit of a capacity greater than that of asingle regulator, so as to equalize the load on each regulator.

I accomplish the object of my invention by mounting two or moreregulators upon a frame and fastening to the coil portion of eachregulator an arm and providing means whereby these arms may be rigidlyconnected together so that the core and coils will have the samerelative amount of movement and thus each regulator will carrysubstantially an equal load and Will heat a substantially equal amount.

For a further understanding of my inventio-n reference may be had to theaccom panying drawings where Figure 1 shows in perspective two.regulators provided with my invention; and Figs. 2 and 3 showdiagrammatically the connections for the regulators, Fig. 2 showing theregulators connected for independent operation and Fig. .3 showing theregulators connected in series for operation with a single circuit.

Referring first to Fig. 1, 1 is a frame which supports the lever systems2 to which are connected the movable coils 3 and cores 4. These may bemade similar to the constructions shown in Patents Nos. 720,3Q5 and765,948 and do not form a part of my invention.

Referring to Figs. 1 and 2, to the coil portion of the regulators areconnected equalizer arms 5 and 6 by links 5, 6'. Arm '5 is rigidlyattached at one end to the shaft 7 which is supported by frame 1. Arm 6Specification of Letters Patent.

Application filed February 24:, 1910.

other.

FitQHhlliBd Aug. 19,1 913.

Serial No. 545,692.

is loosely mounted on the shaft at the end not attached to link 6 andhas formed at this end a quadrant device 3 containing a hole 9. Rigidlyattached to shaft 7 is an arm 10 having a pin 11 formed so that it maybe made to engage with hole 9 when the hole and pin are in line witheach other.

In the position shown in Fig. 2, pin 11 does not engage hole 9 so thatarm 6 is not rigidly connected to shaft 7 and hence to arm 5, and thusit is obvious that the coil of each regulator may be moved independentlywith reference to the other.

In the arrangement shown in Fig. 3, pin 11 engages with hole 9 and itwill be obvious that this rigidly connects arm 6 to arm 5, thus causingboth coil portions of the regulators to have an equal and simultaneousmovement. In Fig. 2 the regulators are shown as independently connectedto cir-, cuits 12 and 13 which are fed by the divided secondary oftransformer 14, whose primary is fed by conductors 15. In Fig. 3, thetwo regulators are shown as interlocked by the equalizer arms and shaftand connected in series to the circuit 16 which is fed by the secondaryof the transformer 14 which now has its two windings connected inseries.

The method of operation of my device will be as follows: If.it bedesired to regulate two circuits of a capacity equivalent each to thatof one of the regulators, by which I mean that each regulator canregulate such a circuit without undue heating of the regulator, theconnections may be made as shown in Fig. 2. Pin 11 will be placed sothat it does not engage in hole 9 and thus there will be no rigidconnection between the arms 5 and 6 and hence between the moving coreportions of the regulators and each regulator may have an independentrelative movement of its cores and coils and thus regulate independentlyof the If it be desired to regulate a circuit of a greater capacity thanthat of a single regulator, the regulators may be connected inrseriesand pin 11 made to engage hole 9, in which case the two arms Will berigidly mechanically interconnected and hence the two cores and coilportions will have an equal and simultaneous movement and there will bea substantiallyequal division of the load between the regulators and asubstantially similar heating in each regulator.

I am aware that regulators of this general character have been used inthe past connected in series to each other, but I am not aware that theyhave ever been mechanically interconnected so that they shall each carrya substantially equal division of the load. The advantage of myinvention is that, with my invention applied to two or more regulators,each will regulate an equal amount and thus there will be asubstantially similar heating in each, and one regulator will not do thegreater portion of the regulating with the resultant increase of itslosses and heating, while the other regulator is running in a positionwhere its losses are low. Another advantage is that it is possible tostart up the two regulators separately, each connected to a separatecircuit as shown in Fig. 2, and later, if it is desired to combine thetwo circuits into one, theymay be connected together as shown in Fig. 3and by loosening the equalizer pin the regulators may be allowed toslide together so that the equalizer arms can be locked together withoutdisturbing the circuits. Another advantage of my invention is that itreduces the insulation strain on the circuit.

While I have described a particular embodiment of my invention, I do notlimit myself to this embodiment but seek in the appended claims to coverall embodiments which will be obvious to those skilled in the art andwill be within the scope of my in vention.

What I claim as new and desire to secure by Letters Patent of the UnitedStates is 1. In combination, a loaded electric circuit, a plurality ofregulators in series therewith, each regulator having a coil and a corerelatively movable and being com plete in itself, and means connectingthe regulators for causing substantially equal division of the loadamong the regulators.

2. In combination, a loaded electric circuit, a plurality of regulators,each ineluding a core and a coil relatively movable and being completein itself, the coils being connected in series with the circuit, andmeans connecting the regulators for causing substantially equal divisionof the load among the regulators. x

3. A plurality of electric regulators, each including a core and a coilrelatively'movable and being complete in itself, and means connectingthe regulators for causing substantially equal movement among the coilsand cores of the regulators.

4. A plurality of electric regulators, each including a core and a coilrelatively movable and being complete in itself, and a plurality of armsconnected to said coils caus ing substantially equal movement betweenthe cores and the coils of the regulators.

5. A plurality of electric regulators each being complete in itself andincluding a core and a coil relatively movable, and interconnected by aseries of levers,.and a plurality of arms connected to said coilscausing substantially equal movement between the cores and the coils ofthe regulators.

(3. A plurality of electric regulators, each including a coreand a coilrelatively movable and being complete in itself, an arm connected toeach .core, and means for rigidly connecting together said arms.

7 In combination, a frame, electric regulators each having a core and acoil relatively movable and being complete in itself mounted thereon, anarm connected to each .core and means for rigidly connecting togethersaid arms to cause equal movement of the coils relative to theirrespective cores.

8. In combination, a frame, two electric regulators having movable coresand coils mounted thereon, a movable shaft supported by the frame, anarm rigidly attached at one end to the shaft, and connected at the otherend to the coil portion of one of the regulators, a second arm looselymounted on the shaft at one end and connected at the other end to thecoil portion of the sec- "ond regulator, and means for rigidlyconnecting the second arm to the shaft.

9. In combination, a frame, two electric regulators having movable coilsand threelegged movable cores, a system of levers mounted on the frameinterconnecting the coils and cores of the regulators, a movable shaftsupported by the frame, an arm rigidly attached atone end to the shaftand connected at the other end to the coil portion of one of theregulators, a second arm loosely mounted on the shaft at one end andconnected at the other end to the coil portion of the second regulator,and a latch and quadrant device for rigidly attaching the second arm tothe shaft.

In witness whereof, I have hereunto set my hand this 21st day ofFebruary, 1910.

JAMES J. WOOD. lVitnes'ses: A. L. HADLEY, L. S. NOLD.

